Amazon inventory ledger testing and implementation

Tested what I can until more data for the Amazon Ledger Detail table comes in

src/bnhtrade.Core/Logic/Validate/Format.cs

@@ -15,7 +15,10 @@ namespace bnhtrade.Core.Logic.Validate
         /// <returns></returns>
         public static bool SkuNumber(string skuNumber)
         {
-            if (string.IsNullOrEmpty(skuNumber)) { return false;}
+            if (string.IsNullOrEmpty(skuNumber)) 
+            { 
+                return false;
+            }
 
             int count = 0;
             foreach (char c in skuNumber)
@@ -50,11 +53,17 @@ namespace bnhtrade.Core.Logic.Validate
         public static bool DateTime(DateTime dateTime)
         {
             if (dateTime == default(DateTime))
-            { return false; }
+            { 
+                return false; 
+            }
             else if (dateTime.Kind != DateTimeKind.Utc)
-            { return false; }
+            { 
+                return false; 
+            }
             else
-            { return true; }
+            { 
+                return true; 
+            }
         }
     }
 }